Apatite fission-track evidence of widespread Eocene heating and exhumation in the Yukon-Tanana Upland, interior Alaska

• Published in: Canadian Journal of Earth Sciences
• Main Authors: Dusel-Bacon, Cynthia, Murphy, John M
• Format: Article in Journal/Newspaper
• Language: English
• Published: Canadian Science Publishing 2001
• Subjects: General Earth and Planetary Sciences; Yukon; Fairbanks; Eielson; Alaska
• Online Access: http://dx.doi.org/10.1139/e01-015; http://www.nrcresearchpress.com/doi/pdf/10.1139/e01-015

We present an apatite fission-track (AFT) study of five plutonic rocks and seven metamorphic rocks across 310 km of the Yukon–Tanana Upland in east-central Alaska. Samples yielding ~40 Ma AFT ages and mean confined track lengths > 14 µm with low standard deviations cooled rapidly from &gt...